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368447-63-6

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368447-63-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 368447-63-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,6,8,4,4 and 7 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 368447-63:
(8*3)+(7*6)+(6*8)+(5*4)+(4*4)+(3*7)+(2*6)+(1*3)=186
186 % 10 = 6
So 368447-63-6 is a valid CAS Registry Number.

368447-63-6Relevant articles and documents

Ring-Strain-Enabled Catalytic Asymmetric Umpolung C-O Bond-Forming Reactions of 1,2-Oxazetidines for the Synthesis of Functionalized Chiral Ethers

Wu, Binyu,Yang, Jinggang,Gao, Min,Hu, Lin

, p. 5561 - 5566 (2020/07/14)

An unprecedented catalytic asymmetric umpolung C-O bond-forming reaction of N-nosyl 1,2-oxazetidines with β-keto esters has been achieved in the presence of a chiral phase-transfer catalyst, allowing access to a range of highly functionalized chiral ethers bearing quaternary and no adjacent stereogenic centers with high yields, excellent enantioselectivities, and diastereoselectivities (up to 97percent ee and 20:1 dr). These versatile products could be flexibly transformed into biologically important chiral fused and spiro morpholines in two steps.

Nucleophilic addition of methyllithium to chiral oxime ethers: Asymmetric preparation of 1-(aryl)ethylamines and application to a synthesis of calcimimetics (+)-NPS R-568 and its thio analogue

Yamazaki, Naoki,Atobe, Masakazu,Kibayashi, Chihiro

, p. 5029 - 5032 (2007/10/03)

Chiral (E)-arylaldehyde oxime ethers, prepared using (R)-1-phenyl-1,2-ethanediol as a chiral auxiliary, undergo nucleophilic addition with methyllithium to give diastereomerically enriched O-alkyl hydroxylamines which, after reductive N-O bond cleavage, lead to the corresponding (R)-1-(aryl)ethylamines. This methodology has been applied to the enantioselective synthesis of a new type of arylalkylamine calcimimetics (R)-(+)-NPS R-568 and its thio analogue.

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